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We interpret the lens transformation (a variant of the pseudoconformal transformation) as a pseudoconformal compactification of spacetime, which converts the nonlinear Schr\"odinger equation (NLS) without potential with a nonlinear…

Analysis of PDEs · Mathematics 2009-06-13 Terence Tao

We consider the recovery of some statistical quantities by using the near-field or far-field data in quantum scattering generated under a single realization of the randomness. We survey the recent main progress in the literature and point…

Analysis of PDEs · Mathematics 2021-04-29 Shiqi Ma

New estimates on the maximal function associated to the linear Schrodinger equation are established

Analysis of PDEs · Mathematics 2012-01-17 Jean Bourgain

We give new lower bounds for $L^p$ estimates of the Schr\"odinger maximal function by generalizing an example of Bourgain.

Classical Analysis and ODEs · Mathematics 2020-09-03 Xiumin Du , Jongchon Kim , Hong Wang , Ruixiang Zhang

Using Guth's polynomial partitioning method, we obtain $L^p$ estimates for the maximal function associated to the solution of Schr\"odinger equation in $\mathbb R^2$. The $L^p$ estimates can be used to recover the previous best known result…

Classical Analysis and ODEs · Mathematics 2016-11-10 Xiumin Du , Xiaochun Li

The second order $N$-dimensional Schr\"odinger equation with pseudoharmonic potential is reduced to a first order differential equation by using the Laplace transform approach and exact bound state solutions are obtained using convolution…

Mathematical Physics · Physics 2016-01-05 Tapas Das , Altug Arda

Exact bound state solutions and corresponding normalized eigenfunctions of the radial Schr\"odinger equation are studied for the pseudoharmonic and Mie-type potentials by using the Laplace transform approach. The analytical results are…

Mathematical Physics · Physics 2012-03-13 Altug Arda , Ramazan Sever

This paper has been withdrawn by the author due to an error estimate in Lemma 3.1.

Classical Analysis and ODEs · Mathematics 2012-06-11 Shuanglin Shao

We study integral estimates of maximal functions for Schr\"odinger means.

Analysis of PDEs · Mathematics 2019-06-06 Per Sjölin , Jan-Olov Strömberg

The semi-relativistic equation is cast into a second-order Schrodinger-like equation with the inclusion of relativistic corrections up to order (v/c)^2. The resulting equation is solved via the shifted-l expansion technique, which has been…

Mathematical Physics · Physics 2009-10-31 T. Barakat

The purpose of this note is to provide a summary of the recent work of the authors on two variations of the pointwise convergence problem for the solutions to the fractional Schr\"odinger equations; convergence along a tangential line and…

Analysis of PDEs · Mathematics 2022-12-26 Chu-hee Cho , Shobu Shiraki

A class of self-similar solutions to the derivative nonlinear Schr\"odinger equations is studied. Especially, the asymptotics of profile functions are shown to posses a logarithmic phase correction. This logarithmic phase correction is…

Analysis of PDEs · Mathematics 2018-11-16 Kazumasa Fujiwara , Vladimir Georgiev , Tohru Ozawa

Almost everywhere convergence on the solution of Schr\"odinger equation is an important problem raised by Carleson in harmonic analysis. In recent years, this problem was essentially solved by building the sharp $L^p$-estimate of…

Analysis of PDEs · Mathematics 2023-12-12 Zhenbin Cao , Changxing Miao , Meng Wang

An optimized Rayleigh-Schr\"{o}dinger expansion scheme of solving the functional Schr\"odinger equation with an external source is proposed to calculate the effective potential beyond the Gaussian approximation. For a scalar field theory…

High Energy Physics - Theory · Physics 2009-11-07 Wen-Fa Lu , Chul Koo Kim , Kyun Nahm

This paper shows how abstract resolvent estimates imply local smoothing for solutions to the Schr\"odinger equation. If the resolvent estimate has a loss when compared to the optimal, non-trapping estimate, there is a corresponding loss in…

Analysis of PDEs · Mathematics 2007-11-19 Hans Christianson

We propose a new analytical method to solve for nonexactly soluble Schrodinger equation via expansions through some existing quantum numbers. Successfully, it is applied to the rational non-polynomial oscillator potential. Moreover, a…

Mathematical Physics · Physics 2007-05-23 Omar Mustafa , Maen Odeh

This is a work extending the results of \cite{AH} and \cite{AHH}. We want to show convergence of the Schr\"odinger equation towards the Hartree equation with more natural assumptions. We first consider both the defocusing and the focusing…

Mathematical Physics · Physics 2021-06-08 Michael Hott

The representations of the kernels of the transmutation operator and of its inverse relating the one-dimensional Schr\"odinger operator with the second derivative are obtained in terms of the eigenfunctions of a corresponding…

Classical Analysis and ODEs · Mathematics 2018-12-31 Kira V. Khmelnytskaya , Vladislav V. Kravchenko , Sergii M. Torba

The aim of this paper is to find the exact solutions of the Schrodinger equation. As is known, the Schrodinger equation can be reduced to the continuum equation. In this paper, using the non-linear Legendre transform the equation of…

Quantum Physics · Physics 2018-10-17 E. E. Perepelkin , B. I. Sadovnikov , N. G. Inozemtseva , A. A. Tarelkin

By recourse to i) the Hellmann-Feynman theorem and ii) the Virial one, the information-optimizing principle based on Fisher's information measure uncovers a Legendre-transform structure associated with Schr\"odinger's equation, in close…

Statistical Mechanics · Physics 2015-05-27 S. P. Flego , A. Plastino , A. R. Plastino
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